The various parts of Victoria Beckham's anatomy are hard enough to identify in a good quality picture. In particular, her breasts are so oddly shaped, and misplaced, that even finding Victoria's nipples would take a seven-day expedition. Add to that the fact that these pictures are very grainy, and out of focus, and I would say it's nearly impossible to say for certain that what we are seeing is in fact a Victoria Beckham nipple slip.
That being said, it could well be that what we have here are genuine nipple slip pictures, but if that were true, it would mean Victoria Beckham lacks any discernable areola, and merely has dark grey nipples protruding directly out of her artificial breasts. Plus, they would be very oddly positioned too. Of course, we are talking about Posh Spice, so that really wouldn't surprise me.
Believe what you will, the bottom line here is that if that is indeed Victoria Beckham's nipple, it's probably one of the scariest things I've ever seen, so regardless of all the factors making it unlikely, I will simply choose to believe it is not, since I would very much like to be able to sleep tonight.
More pictures after the jump.